Agricultural implement



C. H. PELTON.

AGRICULTURAL IMPLEMENT.

APPLICATION mw JAN. 3, 1921.

Mwlll; Patented Mays), 1922.

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C. H. PELTON.

AGRICULTURAL IMPLEMENT- APPLICATlON HLED JAN. 3, i921. A f f1 ,41 5, l l 1 Patented May 9, 1922.

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Nits. sfrarss rice.; i,

CHARLES r1. ramon, or srnrnerintn, omo,4 essrenen 'ro man THOMAS MANUFAC- 'DURING COMPANY, or snngrnsrntn, OHIO, A consom/irren or onro. i

GRCULTU-RL IMPLEMENT.

Sp cciiication of LettersV Patent.

Application filed January 3, 1921. Serial No. 434,519.v

To all whom t may concern 'i Y Be it known that I, CHM/inns H. Pnn'reN, a citizen of the United States, residing at Springfield, in the county of Clark and State of Ohio, have invented; certain new and useful improvement-s in Agricultural Implements, of` which the following,` is a specification, referencel being had therein to the accompanying drawing.

This invention relates to agricultural. 1mplements, and more particularly to grain drills which are to be operated or` drawn over the fields by a tractor or power machine. a

They present invention comprises an 1mprovement upon that part of'my other invention set forth in my application, Ser. No. 874,527, tiled April 177th', 1920, which relates to the connection between the rockshaft and the draft-operated eccentric mechanism.

. As set forth in my earlier application the pitman connecting the eccentric ring With the arm on the rockshaft'vvas of a fixed length, any adjustment in the relation of the eccentric ring `and the arm on the roclzshaft dependingupon a series of holes in the pitman, througheither of which could b e passed the pitman that connected the pitn man With the arm. in the former case the pitman was' also rigidly connect-edc with the eccentric ring.A

In the f'present'invention the length of the pitman is kadjustable so that the gangs may be pressed more or less near the ground, and the hoes or disks more or lessdeep in. the soil, by the given or fixed movement cr throw of the eccentric ring. v

And in the present case also the pitman is flexibly connected "With the* eccentric ring so that any variance in the alinement between the ringand the arm on the rockshaft which connects with the pitman will not tend to bind the ring on its operating devices.

These two improvements are of marked advantage in the practicalV use of a grain drill embodying my invention, as will be hereinafter more fully explained.

In the accompanying drawings: y Fi l.' 1 isa partial side and ypartial sectionazl view' of a grain drill embodying my' of making the adjustable connection be tween them ;v andvv Fig. 3 is il, Plan vieuv of a drill showing generally the arrangement embodied in my former application, with my present invention substituted for the former pitman and eccentric ring. s

As' stated above, the present invention .constitutes improvements on the part of the invention set forth in my previousy application, Ser. No. 374,527. lf Willtherefore make but a general description of so much of the previous invention as is illustrated in the present case, confining the particularities of the speciiicatien tothe present improve ments. I

Those parts of a general grain drill, which are here shown, are ground `Wheels 1 (only one Wheel is showny as both are alike) mounted on an axle or shaft 2' to which the Wheels are so connected that the axle revolves` With them. Suitably mounted upon the axle isY a frame comprised cf longitudinal members 8 and cross members 4 and 5. To the for- Ward members 4 aresecured depending arms 6 braced by braces 7. In the arms is mounted a long cross rod 8 on which are hung the beams or gangs 9 which carry the furrow opening disks 10 and seed delivery tubes 11. To each of these tubes is connected a liftincr and depressing rod 12W, which preferably as a series of openings 155 to receive a pin 14 Which supports a Washer 15 on which rests` a spira-l spring 1,6, the other end of the spring pressing against a sleeve 17 slidably mounted on the rod 1,2 so as to Patented May 9, 1922i,

4.0 i fshaft19 through the .coupling 28` and propling 28 is'pivotedatBQto `an arm orproejection 31 vwhich `isj securedto .the` rockshaft 19.

theuse and aaplication ofthe present iinprovements.l` o this end-it will- `oe Vunderstood that the eccentric ring 21 receives eccentric motion so as to imparti a substan# tial reciprocating motion to the pitman composed of the rod 22 and bar 23... Thisrbar Y is pivoted to the ring by ineansof bolt 2-1 passing through lugs"25"on the r1ng"and through an opening in theadjacent yend of the lbar 28. The other end lof* the bar is in the nature of a sleeve, screwthreaded interiorly to receivethe threaded` portion 26 of the rod 22. these means the length of the pitman .can be variedyby screwing: the yrod in or outl of. the bar." To prevent the rod vfrom ever vbeing wholly unscrewed'jfrom the bar, `as when the machine might bek out of use, alpin 26a or other form of enlargementy or interruption of the thread on the ,rod is provided so that when this `point is reached it `will clog'in the thread of the bar 23 and thus prevent Ytherodi from being un :screwed wholly out.'k

The other end ofthe `rod ifs'providedlwith a' shoulder and `passes'through amcoupling 28 :and terminates in a trank 29. `l The courma au this a' ein "bf'anae'aooa that when they eccentric 21 `is operated, as when the looking and unlocking mechanism,

generally lshown herein atf32,is operated toV `unlock the' draft llftlngmechanism, the pitman will be'given a rearward and upward movement., This is transmitted to the rockjection orarm V31. Inturn, the arm 18 and the ganglifting rod v12l are operated to lift the gang or beam. `This description applies toall of akseries of arms 18,r rodsx312. and gangsy 9, say 'one-halfl of the whole number inca drill," likemechanism tothat herein devscribed being usedvtoso operate the other h alfof the gangs through like rods 12, arms `18` and rockshaftlQ. l 4 .y It. will now be. seenthatgthere` must be feith'erperfect alinementbetween the position of theeccentric ringandthezarm 31 on 4the rovckfshaft Aor there mustbe some means tocompensate for any irregularitywor Alack of'alinement v,ln-ztween these parts. This 1s necessary in orderl to overcome abinding or twisting effect, on the ring. ,To this .end i l'pivoftalrly connect` the yring and the pitman in GOItheHniannenfablove described. lnith'is. way p ltheqpitmanwworks 4freely. andso :does the "ring, yetth'e may not'b,einperfect alinementlwfith the arm 81 on thev rockshaft.

Q-fthe @sergentmay.beqlite-nerteetvhen the machine isfirst made,`but may be lost ;tancebetweentheeccentri rnganfl the arm 31 on the roclshaft may be varied, and made 'greater 'or less. This is done by revolving the rod 22 in the bar 23. f Y v if :the lpitman Ais-thus shertened" andth arm 18 on the: rockshaft is brought near to they eccentric ring "the given movements of the pitman and ring in permittingthe furrow opener to descendztofLthejgroundQwill cause `'the furrow opener to` fgof ,deeper finto the soil` than if the distance betweenk the eccentric ring and the arin 18is lengthened.

In other words, by meanSioff this ,adjustable tions `that arise in use. f.

pitman the distance between the arm'y 181cm Y While l have shown vandides,cribe-dficertain l" i features as constituting my invention, will be understood that` Aparts, havebeen shown for purposesy of illustration only,"and thatl do not desiretobe `limited top such detailsh, as obvious modlficationswlllooeur toaperson skilledin the fait. llc Y..

, 'Having thus fullydescribed myjinvention, what I claim as newand desi'refft'oy secure'by Letters-Patenaisz-Qy f 'i i 1. The combinationlwith power i ting mechanism, of agpitman securedzthereto and adjustable` in length, one, member rvof the pitman ycomprising a rod, having, a' crankI ,by

which itis operated toadjust the lengthfof the pitman, a., rock shaft, andiconnections between the rockshaftand ro`d,lsaidy connections permitting lthe turning; iofvlsaid; crank without disconnecting the rod.

2. The combination, vwith power transmit- ,311

ting mechanism including an eccentric, of; a pitman comprising a barllpivotedto the eccentric, .a rod screwed intothebarfand having a crank at fthe other end, .alrockshaf any arm thereon, andavcouplingypivotedto said arm land receivingl within itthe .pitman rod. i" i 3. A i composedk of., 4provided at oneend with anapertureto t.receive a pivot` .pin and yhaving a1 screw-threaded;

sleeve, a rod screwed intosaidv sleeve with-a Stop ati OHG-@11d t0 limit the 1@mijnStment 0f the rod in the sleeve,anda. crank at the .other end.

4. The combination with. a

frame supported thereby, a y rock shaftf'earried by the, frame, power .transmitting mechanism mountedl uponfthefi'rst mentioned shaft and including/an eccentricfa pitman provided .atone end withanfadjustableY member, pivotally'` connected to'said -eccentric,l aj {cra-nk., providedaat. thef-otherf fend of said p itman for adjusting said adjustable member, and means connecting said pitmnn to said rock sha-ft.

5. n Combination, an eccentric rine? a ber piyotally connected to Said ring by a pivot pin extending' nerpendioularly to a radius 01" said ring, said bar being` provided with a threaded aperture, rod provided at one end With a' crank and having its other end threaded in engagement with the threads of the aperture. and a member mounted upon said rod and actuated thereby.

6. The Combination with a shaft and a trame supported thereby, of a rock-Shaft earried by the frame and arranged parallel to the first mentioned shaft, power transmitting mechanism mounted upon the rst lmentioned Shaftv a pitman pvotally oon- CHARLES H. PELTON. 

